Physics
V=pi*r^2 * h=3.14*0.35^2 * 2.1=0.8o8 m^3 Mass = 0.808 m^3 * 2200kg/m*3=1777.1 kg. Wt. = 1777.1kg * 1Lb/0.454kg = 3914 Lbs.
math
The slope of the perpendicular line is the negative reciprocal of the give slope. m = -(-1/8)= 1/8.
Algebra
y = -3x/2 + 3 Multiply both sides by -2: -2y = 3x - 6 2y = -3x + 6 2y = 6 - 3x Answer = A.
algebra word problem
X Students sold. X+100 Adult tickets sold. 2000-(x+x+100) = 1900-2x Children tickets sold. 10x + 12(x+100) + 5(1900-2x) = $19,700. 10x + 12x+1200 + 9500-10x = 19700 12x = 19700-10700 = 9000 X = 750 X+100 = 850 1900-2x = 400.
Maths
Use the law of cosines. cosA = (-a^2+b^2+c^2)/2bc. cosA=(-(8.6)^2+(9.1)^2+(9.7)^2)/176.54 = 0.58310. A = 54.33o. Area = 0.5*bc*sinA. Area=0.5*9.1*9.7*sin(54.33) = 35.9 cm^2
physics
See previous post.
physics
a. a = (V-Vo)/t = (11-0)/4.8=2.29 m/s^2. d = 0.5a*t^2 = 0.5*2.29*(4.8)^2=26.4 m. Work = F*d = mg*d = (79*9.8) * 26.4 = 20,439 J. b. P = F*d/t = 20439/4.8 = 4258 J/s = 4258 W.
axia
I'm assuming the account is compounded annually. A = Po(1+r)^n n = 1comp/yr. * 2yrs. = 2 Compounding periods. A = 4000(1.1)^2 = $4840.
maths
1. d = 16*t^2. 1 s. 16 Ft. 2 s. 64 Ft. 3 s. 144 Ft. d = 4.9*6^2 = 176.4 Ft in 6v s. 3. T = 75(1+0.10)^3 = 99.8o.
Physics
Incomplete.
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